Special Issue "Catalysis by Metal-Oxide Nanostructures"

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 31 March 2020

Special Issue Editor

Guest Editor
Dr. Sónia Carabineiro

Universidade de Lisboa, Lisbon, Portugal
Website | E-Mail
Phone: +351220414907
Interests: catalysis by gold nanoparticles, mixed metal oxides, nanostructured carbon materials, oxidation and hydrogenation reactions, degradation and adsorption of air and water pollutants, and heterogenisation of homogenous metal complexes.

Special Issue Information

Dear Colleagues,

Research into the subject of catalysis by metal-oxide nanostructured materials has been increasing over the past few years. Metal oxides (single or mixed) have been successfully used as catalysts, themselves, or as supports for single and multi-noble metals. Examples of metal oxides are silica, alumina, titania, zirconia, zeolites, Fe2O3, Fe3O4, ZnO, polyoxometallates (POMs), perovskites, phosphates, multicomponent mixed oxides (molybdates, tungstates, antimonates, etc.), hexaaluminates, etc. Such materials have been successfully used in several catalytic reactions of crucial importance, such as total and partial (selective) oxidation, hydrodesulphurisation, depollution, deNOx, deSOx, acid and base catalyses, biomass conversion, photocatalysis, among others.

This Special Issue aims to cover the recent developments in the field in catalysis. Papers dealing with any type of metal oxide nanostructures, their preparation, characterisation, use for a type of catalytic reaction, mechanistic studies, and theoretical studies, among others, are most welcome. We hope you will contribute a paper. 

Dr. Sónia Carabineiro
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access monthly journal published by MDPI.

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  • metal oxides
  • mixed metal oxides
  • nanotructures
  • catalysis

Published Papers (1 paper)

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Open AccessArticle Metal-Support Cooperative Effects in Au/VPO for the Aerobic Oxidation of Benzyl Alcohol to Benzyl Benzoate
Nanomaterials 2019, 9(2), 299; https://doi.org/10.3390/nano9020299
Received: 28 January 2019 / Revised: 11 February 2019 / Accepted: 15 February 2019 / Published: 20 February 2019
PDF Full-text (4170 KB) | HTML Full-text | XML Full-text | Supplementary Files
This paper studies the cooperative effect of Au nanoparticles deposited on vanadyl pyrophosphate oxide (VPO) in the liquid phase oxidation of benzyl alcohol. VPO was prepared using the classical method by thermally treating VOHPO4·0.5H2O precursor in reacting atmosphere at [...] Read more.
This paper studies the cooperative effect of Au nanoparticles deposited on vanadyl pyrophosphate oxide (VPO) in the liquid phase oxidation of benzyl alcohol. VPO was prepared using the classical method by thermally treating VOHPO4·0.5H2O precursor in reacting atmosphere at 420 °C for a period of 72 h. Au nanoparticles were deposited by incipient wetness method. The catalysts were characterized by means of XRD, TEM, XPS and Raman. The bulk VPO catalyst contains vanadyl pyrophosphate phase ((VO)2P2O7), and a small amount of VOPO4. The catalytic system exhibits a high activity in the base-free liquid phase oxidation of alcohols compared to Au on activated carbon, classic catalyst used for this type of reaction. Au/VPO showed a high peculiar selectivity to benzyl benzoate (76%), an important product used in the pharmaceutical and perfume industries. This behavior might be ascribed to the presence of strong acid sites of VPO, as determined by liquid phase titration. Stability tests performed on Au/VPO showed a deactivation of 10% after the first run, but a constant conversion along the following five cycles. This phenomenon can be attributed to the increase of mean Au particle size (from 19.1 to 23.4 nm) after recycling tests as well as the partial leaching of Au and V in the reaction media. Moreover, XRD evidenced a modification in the VPO structure with the partial formation of VOHPO4·0.5H2O phase. Full article
(This article belongs to the Special Issue Catalysis by Metal-Oxide Nanostructures)

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